product introduction:
due to lack of high-voltage dc circuit breakers with millisecond breaks, dc transmission technology cannot be as flexible as ac transmission, which has become a bottleneck in the development of dc transmission technology.it is exciting that pinggao group's r&d team successfully completed the design of the first ±200kv high-voltage dc circuit breaker in china. the dc circuit breaker can interrupt 15ka current within 3ms, reaching the international leading level.it has the advantages of less number of mechanical breaks , high reliability and being easy to extend the application to ±500kv and higher voltage levels.